Find all solutions to the given equations (x-3)(x+2)=0

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

Describe the domain and range of y=2(3)^x-2+5

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)